[INFO] fetching crate humster 0.0.1...
[INFO] checking humster-0.0.1 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate humster 0.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate humster 0.0.1 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate humster 0.0.1
[INFO] finished tweaking crates.io crate humster 0.0.1
[INFO] tweaked toml for crates.io crate humster 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2027379128eb9fc5682f5f82062a10a0875f58701470c495f132f8dd42fd95bb
[INFO] running `Command { std: "docker" "start" "-a" "2027379128eb9fc5682f5f82062a10a0875f58701470c495f132f8dd42fd95bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2027379128eb9fc5682f5f82062a10a0875f58701470c495f132f8dd42fd95bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2027379128eb9fc5682f5f82062a10a0875f58701470c495f132f8dd42fd95bb", kill_on_drop: false }`
[INFO] [stdout] 2027379128eb9fc5682f5f82062a10a0875f58701470c495f132f8dd42fd95bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 064d06bb8fb968a689055e2ea9b87435a29fb74c5ba870aa805ba47b9189b524
[INFO] running `Command { std: "docker" "start" "-a" "064d06bb8fb968a689055e2ea9b87435a29fb74c5ba870aa805ba47b9189b524", kill_on_drop: false }`
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking humster v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "064d06bb8fb968a689055e2ea9b87435a29fb74c5ba870aa805ba47b9189b524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "064d06bb8fb968a689055e2ea9b87435a29fb74c5ba870aa805ba47b9189b524", kill_on_drop: false }`
[INFO] [stdout] 064d06bb8fb968a689055e2ea9b87435a29fb74c5ba870aa805ba47b9189b524